[PCW] fuel economy

[Malcolm Tennant]

Dear Jonah,

Basically, with a diesel engine you will burn approx 200gm of fuel per
kw/hour. So the actual HP rating of the motor is rlatively immaterial. It is
as you say:- 100hp generated will require the same amount of fuel regardless
of the engines rating.

Of course it is not quite that simple and the amount of fuel required to
generate one horsepower, or kilowatt, will vary slightly depending on
whereabouts on the fuel curve the power is being generated. But generally
these differences are pretty small, like 20 grams[ roughly a postage stamp
weight of fuel] if you are comparing similar types of engine.

regards,

Malcolm Tennant.

MALCOLM TENNANT MULTIHULL DESIGN LTD
PO Box 60513, Titirangi.
Waitakere 0642
NEW ZEALAND
Ph: +64 9 817 1988
e-mail: malcolm at tennantdesign.co.nz
www.tennantdesign.co.nz
www.catdesigners.com